Automatic single-trigger mechanism for double-barrel guns.



RATENTED JULY 31,- 1906.

v No. 827,242.

. J. .KAUTZKY.

AUTOMATIOSINGLE TRIGGER MECHANISM FOR DOUBLE BARREL GUNS.

APPLIOATION FILED JUNEG, 1905.

NORRls 0., WASHJNGI'DN, n. c.

usirso srxrns ATENT curios.

Specification of Letters Patent.

'iatented July 3.1. 190

Application filed June 6, 1905. Serial No. 263.985.

To all whom, it may concern:

Be it known that I, JOSEPH KAUTZKY, acitizen of the United States, residing at Fort Dodge, in the county of Webster and State of Iowa, have invented a new and useful Auto'- Inatic- Single-TriggerMechanism for Double- Barrel Guns, of which the following is a specification.-.

My object is to provide automatic mechai1- ism for o erating the single trigger of a doublebarre 'gun in such'a manner that when the trigger is pulled to discharge either one of the barrels theautomatic action of the mechanism when one barrel is discharged will operate a tumbler for connecting the trigger therewith as required for discharging the gun asecond time.

My invention consists in the construction, arrangement, and combination of elements and subcombination, as hereinafter set forth, poi-ntedout'in-my claims, and illustrated in the accompanying drawings, in which- Figure 1'isa side view of the frame of a breechsloadingdouble-barrel gun lock and shows the positions of the hammer, two sears, a tumbler, and a trigger relative, to each otherand the frame. Fig. 2 is a longitudinal horizontal sectional view and shows the positions of the two sears relative to the tumbler andan auxiliary stop device pivotally connected with thetrig er-to automatically prevent the discharge oi 'the second barrel immediately after'thefirst discharge. Fig. 3 is a sectional detail view that shows the slide pulled back as required to bring the tumbler lnto position for discharging the left barrel. Fig; 4 is a sectional'det'ail view that shows the position of'the tumbler-relative to the ri'ght-hand'sear, the spring, and the slidable device for determining which barrel shall be first discharged; Fig. 5 is a detail view that shows the normal position of the auxiliary stop device relative to the trigger for preventing an immediate discharge of the secondbarrel after the first barrel has been discharged, and Fig. 6 is a correspondingview that shows its position caused by the recoil after-- the first barrel has been discharged.

Fig: 7 is a detail view that shows the position ofthe hammer when cocked and the relative positionsof' the two-sears, the tumbler, and

the -trigger "when the right-hand barrel is to be disc arged; and-'Fig. 8 is a corresponding view that shows the relative positions assumed by the differentparts after the barrel iS-discharged.

The numeral 10 designates the frame, adapted for hanging two barrels to its'fron-t' end, in which the hammers 12 are pivotally mounted, as indicated by dotted lines in Fig. 1. The standard 13, to whichthe trigger l l'is pivoted, is integral with the lower rearex tension of the frame 10. The trigger'has a forward and upwardly inclined projection 15, that extends into correspondingslots 16in the bearer 13, in which the branches '17 of the projection 15 are pivoted by a piny18, as shown in Fig. 1.

Auxiliary standards 19 are integral with the rear end of the standard 13, to which the tumbler 20 is pivoted in apendent position as required to allow it to'be vibrated alternately in opposite directions by the contact of the ends of two spring-actuated sears 21 and 22, pivoted in the recesses in the frame under the hammers 12. The front ends of the sears terminate in upward projections adapted to engage notches in the hammers 12, as indicated by dotted lines in F ig. land as shown in Fig. 7 and as required'to retain the hammers in a cocked'position untilreleased by pulling the triggerl' ii- The-rear.

ends of the sears have right angled inward extensions 23 and 24, as shown in Fig.2, that alternately engage the top of the tumbler-20 as required to be actuatedby pullingthe trigger for successively discharging the two barrels. Springs 25, fixed in recesses in the frame 10, (indicated by dotted lines in Fig. 1,) project rearward over the sears 21 and22 and normally retain them depressed, as shown in Fig. 6. I

To the free end'of the tumbler 20 is jourrialed a roller 26, that engages a cam 27 on top of the trigger in such a manner'that the tumbler will be vibrated when the hammers are cooked and the triggen is pulled to actue ate the sears 21 and 22 as required for releasing the hammers 12 and discharging the two barrels at different-times. I

To decide which barrel (the right or the left) shall be discharged first, a selectorattachment consisting ofa-slide 28, mountedin a slot 29 in the frame and ex-tendedrearward, and a spring 30, fixed to its rear'end to engage the tumbler 20 as'shown in Fig: 3 when the left-hand barrel is -to be discharged and as shown in Fig. 4 when the right-hand barrel'is to be discharged, and'a spring 31, fixed to the trigger-plate at the too side of the slide, as shown solid in Fig. land in dotted. lines in Figs. 3 and 4. On the lower side of the slide 28 is an integral thumbpiece 32, adapted in shape to be engaged by a persons thumb as required for moving the slide backward and forward for the purpose of selecting the barrel to be discharged first. The front end of the spring 31 has-an integral pin a, that projects laterally and enters a curved groove in the slide 28, as shown in Fig. 3, in such a manner that the spring 31 normally retains the slide stationary in either of its two positions. Holding the trigger and tumbler up with the sear that has just been operated prevents the tumbler from engaging the second sear and the rebound from the shoulder forcing the trigger against an operator, s finger, causing the safety-block 33 to loose its hold on the trigger-plate, the spring inside of the block (indicated by dotted lines in F ig. 5) thereby throwing it into its normal position and allowing the trigger to move downward far enough for the tumbler to pass the cam and engage the second sear.

Figs. 5 and 6 show an auxiliary device of common form for preventing the discharge of the second barrel immediately after one of the barrels has been discharged. It consists of a spring-actuated block 33, that is bifurcated at its lower end to straddle the upward extension 34 at the rear end of the trigger 14 in such a manner that a projection 35 at the lower end of the block will engage the top of the lower part of the frame in which the trigger 14 moves up and down, as shown in Fig. 6, when the block is thrown into said position by the recoil occasioned in discharging one of the barrels.

, In the practical operation of my invention the tumbler 20 is engaged by the ends of the sears at two different points by the inward extensions of the two sears 21 and 22, as shown in Fig. 2, in such a manner that pulling the trigger 14 vibrates the tumbler as reuired to alternately release the hammers 12 or discharging the barrels at different times. By moving the slide 28 backward or forward the tumbler 20 is vibrated as required to change its position relative to the sears 21 and22- and for decidingwhich one of the two barrels is to be discharged first.

What I claim as new, and desire to secure by Letters Patent, is-

v'1. In a gun-l0ck, a frame, a trigger-standard projecting upward from the lower art of the frame, two parallel slots in the un er side of the standard and a trigger having an upward extension pivoted in said slots, auxiliary elbow-shaped standards at the rear end of the trigger-standard and a tumbler pivoted between the auxiliary standard and a cam on the trigger toengage the lower end of the tumbler to vibrate the suspended tumbler.

2. In a gun-lock, a frame, a triggerstandard projecting upward from the lower part of the frame, two parallel slots in the under side of the standard and a trigger having an upward extension pivoted in said slots, auxiliary elbow-shaped standards at the rear end of the trigger-standard and a tumbler pivoted between the auxiliary standards, a cam on the trigger to engage the lower end of the tumbler to vibrate the suspended tumbler and a roller on the lower end of the tumbler.

3. In a gun-lock, a frame, a trigger-standard projecting upward from the lower part of the frame, two parallel slots in the under side of the standard and a trigger having an upward extension pivoted in said slots, auxiliary elbow-shaped standards at-the rear end of the trigger-standard and a tumbler pivoted between the auxiliary standards, means to vibrate the suspended tumbler, a spring-actuated sear pivoted in the frame and provided with a right-angled extension at its free end to engage the front top portion of the tumbler and a second sear pivoted in the frame and provided with a right-angled extension at its free end to engage the rear top portion of the tumbler.

4. In a gun-lock, a frame, a trigger-standard projecting upward from the lower part of the frame, two parallel slots in the under side of the standard and a trigger having an upward extension pivoted insaid slots, auxiliary elbow-shaped standards at the rear end of the trigger-standard, a tumbler pivoted between the auxiliary standards and means to vibrate the suspended tumbler, a spring-actuated sear pivoted in the frame and provided witharight-angled extension at its free end to engage the front top portion of the tumbler and a second sear pivoted in the frame and provided with a right-angled extension at its free end to engage the rear top portion of the tumbler, two hammers pivoted in the frame provided with cams at their under edges and front end portions and projections at the front ends of the sears adapted to engage the cams on the hammers to retain the hammers in cocked positions.

5. In a gun-lock, a frame, a trigger-standard projecting upward from the lower part of the frame, two parallel slots in the under side of the standard and a trigger having an upward extension pivoted in said slots, auxiliary elbow-shaped standards at the rear end of the trigger-standard and a tumbler pivoted between the auxiliary standards and means to vibrate the suspended tumbler, a spring-actuated sear pivoted in the frame and provided with a right-angled extension at its free end to engage the front top portion of the tumbler and a second sear' pivoted in the frame and provided with a right-angled extension at its free end to engage the rear top portion of the tumbler, two hammers pivoted in the frame provided with cams at their under edges and front end portions and projections at the front ends of the sears adapted to engage the cams on the hammers to'retainthe hammers in cocked-positions and the lower edges of the hammers being shaped in suchmanner, that when the first hammer isdischarged the front end of the sear'is allowed to move upward into a deeper place on the hammer enabling the searspring to force the hind end of the sear downward thus actuatingthe tumbler to engage the opposite sear for the second shot.

6. In a gun-lock, a frame, a trigger-standard projecting upward from the lower part of the frame, two parallel slots in the under side of-the standard and a trigger having an upward extension pivoted in'said slots, auxiliaryelbow-shaped standards at the rear end of the triggersta-ndardand a tumbler pivoted between the auxiliary standards, means to vibrate the suspended tumbler, a springactuated sear pivoted in the frame and provided with a right-angled extension at its free end to engage the front top portion of the tumbler and a second sear ivoted in the frame and provided with a rig t-angled extension at its free end to engage the rear top portion of the tumbler, two hammers pivoted in the frame provided with cams at their under edges and front end portions and projections at the front ends of the sears adapted to engage the cams on the hammers to retain the hammers in cocked positions and the lower edges of the hammers being shaped in such manner, that when the first hammer is discharged the front end of the sear is allowed to move upward into a deeper place on the hammer, enabling the searspring to force the hind end of the sear downward thus actuating the tumbler to engage the opposite s'ear for the second shot, a slide fitted in a slotin the lower part of the frame and a spring fixed to the rear end of the slide to engage the under side of the top portion of the pivoted and suspended tumbler as required to select either barrel first.

v 7. In a gun-lock, a frame, a trigger-standard projecting upward from the lower part of the frame, a trigger pivoted to said standard,

.' auxiliary elbow-shaped standards at the rear end of the trigger-standard and a tumbler pivoted between the auxiliary standards, a spring-actuated sear pivoted in the frame and provided with a right-angled extension at its free end to engage the front top portion of the tumbler and a second sear pivoted 'in' the frame and provided with a rightangled extension at its free end to engage the rear top portion of the tumbler, two hammers pivoted in the frame and provided with cams at their under edges and front end portions and projections at the front ends of the sears adapted to engage the cams on the hammers to retain the hammers in cocked positions and the lower edges of the ham mers being shaped in such mariner that when the first hammer is discharged the front end of the sear is allowed to move upward into a deeper place on the hammer, enabling the sear-spring to force the hind end of the sear downward thus actuating the tumbler to engage the opposite sear for the second shot, a slide fitted in a slot inv the lower part of the frame and a spring fixed to the rear end of the slide to engage the under side of the top portion of thepivoted and suspended tumbler as required to select either barrel first and a spring fixed to the trigger-plate at the side of=slide and provided with a pin at its front end extended into a curved slot in the slide to retain'the slide stationary.

8. In a gun-lock, a frame, a trigger-standard projecting upward from the lower part of the frame, a trigger pivoted to said standard,

auxiliary elbow-shaped standards at the rear end of the trigger-standard and a tumbler pivoted between the auxiliary standards, a

spring-actuated sear pivoted in the frame and provided with a right-angled extension at its free end to engage the front top portion of the tumbler and a second sear pivoted in the frame and provided with a right-angled extension at its free end to engage the rear top portion of the tumbler, two hammers pivoted .in the frame provided with cams at their under edges and front end portions and projections at the front ends of the sears adapted to engage the cams on the hammers to retain the hammers in cocked positions and the lower edges of the hammers being shaped in such manner that when the first hammer is discharged the front end of the sear is allowed to move upward into a deeper place on the hammer, enabling the searspring to force thethind end of the sear downward thus actuating the tumbler to engage the opposite sear for the second shot, a slide fitted in a slot in the lower part of the frame and a spring fixed to the trigger at the side of the slide to engage the under side of the top portion of the pivoted and suspended tumbler as required to select either barrel first, a spring fixed to the trigger-plate and provided with a pin at its front end extended into a curved slot in the slide to retain the slide stationary and means for moving the slide and spring backward and forward as required. to therewith adjust the tumbler relative to the right-angled extensions at the free ends of the two sears and thereby select the barrel that is to be discharged first.

9. In a gun-lock, a frame, a triggerstand ard projecting upward from the lower part of the frame, a trigger having an upward extension pivoted to said standard, auxiliary elbow-shaped standards at the rear end of the trigger-standard and a tumbler pivoted between the auxiliary standards, a spring-actuated sear pivoted in the frame and provided with a right-angled extension at its free end to engage the front top portion of the tumbler and a second sear pivoted in the frame and provided with a right-angled extension at its free end to engage the rear top portion of the tumbler, two hammers pivoted in the frame provided with cams at their under edges and front end portions and projections at the front ends of the sears adapted to engage the cams on the hammers to retain the hammers in cocked positions and the lower edges of the hammers being shaped in such manner, that when the first hammer is discharged the front end of the sear is allowed to move upward into a deeper place on the hammer, enabling the sear-spring to force the hind end of the sear downward thus actuating the tumbler to engage the opposite sear for the second shot, a slide fitted in a slot in the lower part of the frame and a spring fixed to the rear end of the slide to engage the under side of the top portion of the pivoted and suspended tumbler as required to select either barrel first and a spring fixed to the trigger-plate at the side of the slide and pro vided with a pin at its front end extended into a curved slot in the slide to retain the slide stationary and means for moving the slide and spring backward and forward as required to therewith adjust the tumbler relative to the right-angled extensions at the free ends of the .two sears to thereby select the barrel that is to be discharged first and a bifurcated block pivoted to the trigger and provided with an extension at its lower end to engage the frame and to serve as an auxiliary device to prevent the discharge of two barrels in succession when the trigger is pulled only once, all arranged and combined to operate in the manner set forth.

JOSEPH KAUTZKY. Witnesses:

G. P. BOND, PETER DITTMER. 

